docs: github actions 빌드까지 script 작성

.github/workflows/deploy.yml

@@ -0,0 +1,29 @@
+name: sharemind-deploy
+
+on:
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x ./gradlew
+        shell: bash
+
+
+      - name: Build with Gradle
+        run: ./gradlew clean build
+        shell: bash